ROTRONIC HygroLog HL-NT - Manual (Page 17)

IN-E-HL-NT-V2_12
Rotronic AG
Bassersdorf, Switzerland
Document code Unit
HygroLog HL-NT data logger:
instruction manual Instruction Manual
Document Type
Page 17 of 48
Document title
© 2009-2012; Rotronic AG IN-E-HL-NT-V2_12
3. Docking stations for the HygroLog HL-NT
The HygroLog HL-NT requires a docking station with the appropriate interface to be able to
communicate with a PC with the ROTRONIC HW4 software installed. The connector located on
the back of the HygroLog HL-NT is meant to be used with one of the available docking stations
(UART interface). When installed on a PC, the ROTRONIC HW4 software is used to configure
the HygroLog HL-NT, to program its logging function, to download the recorded data and to
adjust the probes connected to the logger against a reference environment.
A docking station is required for any of the following:
o Mount the HygroLog HL-NT to a wall
o Place the HygroLog on the optional desk-top stand
o Use an external AC adapter to power the HygroLog HL-NT
o Connect the HygroLog HL-NT to a PC: RS232 or USB port, Ethernet (TCP/IP) LAN
or WLAN
o Connect up to 64 HygroLog HL-NT or other devices together in a multi-dropped network
(RS-485)
Depending on the model, using a docking station also adds functionality to the HygroLog HL-NT:
o Up to 4 additional probes, including analog probes and direct 4-wire RTDs
o Logical inputs (external contacts)
o Relay outputs
Note: docking stations with internal electronics and PC interface should be generally used with an
external AC adapter.
3.1 Models
All models of docking station have the same physical dimensions and can be used either as a
mechanical adapter to place the HygroLog HL-NT on the optional desk-top stand or as a bracket
to mount the HygroLog HL-NT to a wall. Docking stations are available in the following
configurations:
3.1.1 Basic docking stations (no digital interface)
o HL-DS-NT0: basic docking station without internal electronics. This model simply
provides a means of mounting the HygroLog HL-NT to a wall
o HL-DS-NT1: basic docking station without internal electronics (similar to model HL-DS-
NT0). This model simply provides a receptacle for an AC adapter used to power the
HygroLog HL-NT
3.1.2 Docking stations with RS-232 serial interface
o HL-DS-NT2: receptacle for AC adapter, one serial port (RS232) and one RS485 port
(multi-drop).